Building block and wall



' April 29 1924.

F. S. HART BUILDING BLOCK AND WALL Filed March 5 192.1

2 Sheets-Sheet 1 INVENTOR Aprii 29 1924. 1,49L856 F. s. HART BUILDING BLOCK AND WALL .Filed March 5. 1921 2 Sheets-Sheet z FORREST S. -HART, 0E BATA'V'IA, NEW YO 9:.

BUILDING BLOCK AND WA Application filed March 5, 1921. Serial No. 449,916.

To all whom it may concern:

Be it known that I, Fonnns'r S. HART, a citizen of the United States, residing at Batavia, in the county of Genesee and State of New York, have invented new and useful Improvements in Building Blocks and Walls, of which the following is a specification.

One object of my present invention is the provision of a corner block for use in walls, and one that is characterized by the strong manner in which it may be keyed t0 the blocks above and below it as well as to the blocks opposed to its end and side, and this notwithstanding the facility with which the block may be produced and the 'cheapness of the block considered as a unit.

Another object of the invention is the provision of a wall made up of spaced and parallel courses of interlocked blocks, and means interlocked with the blocks of the two courses and strongly tying the courses together.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings, forming part hereof Figure 1 is a perspective showing a corner a of a single wall constructed in accordance with my inventlon.

Figure 2 is a plan view of a two course wall constructed in accordance with my invention.

Figure 3 is a vertical transverse section taken in the plane indicated by the line 33 of Figure 2.

Figure 1 is an enlarged perspective show-.

ing a corner block constructed in accordance with my invention.

Figure 5 is a perspective .showing the underside of the said corner block.

Figure 6 is a detail perspective of one of the metallic tie straps.

Figure 7 is a perspective of one of the intermediate blocks that I preferably the drawings.

employ in the single wall as Well as in the double wall.

Similar numerals of reference designate corresponding parts in all of the views of One of the important features of my invention resides in the corner block 1 which may be made of any material compatible with its purpose such as concrete, and which may be made for right or left use without which end dis provided with an end upright groove 5 to receive the end tongue of an adjacent intermediate block hereinafter described in detail. The block 1 is also provided with a transverse tongue 6, arranged adjacent to and in parallelism with the block end 3 and extending from one side 7 of the'block to a point spaced from the other side 8 of the block, the latter to provide the side 8 with an upright groove 9. Manifestly the tongues 2 and 6 serve to form a cruciform projection at the up er side of the block which may be depen ed upon to key the block against sidewise and endwi'se movement of the block superimposed upon it. The underside relative to the block 1 is provided with a longitudinal groove 10 and a transverse groove 11; the said grooves 10 and 11 corresponding to the tongues 2 and 6 and being adapted to receive the tongues 2 and 6. of a block below the one described.

The intermediate blocks of the walls shown in Figures land 2 are identical in construction and therefore a detailed description of the intermediate block 1 shown in Figure 7 will suffice to impart a definite understanding of all of the intermediate blocks. The said intermediate block 1", Figure 7, is provided at one side 12 with a longitudinal central tongue 13, and in one end 14 with an upright groove 15, and at the opposite end 16 with an end tongue 17. The underside of the block 1 is provided with a longitudinal central groove 18 adapted to receive the tongue 13 of the. block under the onedescribed.

The manner of constructing a single wall of the blocks 1 and 1* is clearly shown in Figure 1 and need not therefore be described in detail.

The manner of constructing a two course wall of my novel blocks is clearly shown'in Figures 2 and 3, and in this embodiment is incorporated another important feature of my invention. The feature referred to comprises the metallic straps 20, Figures 2, 3 and 6, with upturned flanges 21 at their ends and disposed at right angles to their major portions. In the fabrication of the two cdurse wall, the blocks of the courses are arranged as illustrated so that the courses are separated by an intervening space 22. The straps 20 are arranged at intervals to bridge the said space 22, and the flanges 21 of the straps are made to abut against the ulpstanding tongues opposed to them, as 0 early appears in Figures 2 and 3. From this it fo lows that when blocks constructed in accordance with my invention are superimposed upon the blocks and straps shown in Fi re 2, the superim osed blocks will strad le both the tongue 0 the blocks shown in Figure 2 and the flanges 21- of the tie straps 20 with the result that the said tie straps will be strongly held in place without the assistance of any extraneous means. It will also be readily appreciated that the straps 2O inter osed between the tongues of side by side b ocks will stron 1y maintain the blocks in spaced relation an 1n that way will contribute materially to the strength and durability of the two course wall and that walls may be constructed in accordance with my invention and with the use of my novel blocks ex editiously and easily and without the employment of skilled labor.

In practice it will be understood that as before indicated my novel corner blocks may be molded or otherwise produced in right-s 30 and lefts; also that the described interlocking of the blocks, articularly corner blocks, may be depende upon to strongly hold the blocks together and thereby contribute to the strength and lasting quality of the walls in which the blocks are incorporated. I

Having described my invention, what I claim and desire to secure by Letters Pat ent, is

1. As a new article of manufacture, a'

corner' building block characterized by an upright groove in one end, by a longitudinal central tongue at the upper side of the block and extending from said upiright groove to the opposite end of the bloc and meanest arranged flush with said'end, by an upg'ight groove in one vertical side of t e bloc and adjacent to the last named end thereof ex tending throughout the height of the block by a transverse tongue at'the upper side 0 the block and extending from said side grooveto the opposite vertical side of the block and arranged flush with said side, and by lon itudinal and transverse grooves in the un erside of the block and corresponding to the said longitudinal and transverse tongues. v

2. A, wall including intermediate blocks having tongues at their upper sides and grooves in their undersides and also each having a vertical groove in one end andan upright tongue at its opposite end, and also including corner blocks, each corner block characterized by an upright groove in one end by a lon 'tudinal central ton e at the upper side 0 the block and exten ing from said "upright groove to the opposite end of the block and arranged flush with said end, by an upright groove in one vertical side of the block and adjacent to the last-namedend thereof and extending throughout the height of the block, by a transverse tongue at the upper side of the block and extending from said side groove to the opposite vertical side of the block and arranged flush with said side, and by longitudinal and transverse grooves in the underside of the block and corresponding to the said longitudinal and transverse tongues.

3. A building block with a cruciform projection on one side and grooves in its opposite side corresponding to said projection, and also with a vertical groove in one end and a vertical roove in one vertical side whereby a plura it of said blocks when'laid are interlocked an prevented from slipping and cracking.

In testimony whereof I afiix my signature.

FORREST S. HART. 

